thompson



(No Model.)` 2 Sheets-Sheet 1.

\ J. THOMPSON.

STEREOTYPB CASTING OX.

No. 389,673. n PatentedrSept. `18, 1888.

' Eff INVENTR" ATTORNEY 2 Sheets-Sheet 2.

(No Mdem,

J. THOMPSON.

STEREOTYPB GASTING'BOX.

Patented Sept. 18, 1888.

'INVENTOH ATTURNEY N. Firms. Phnwumngnpher, wnmngwn. D. c.

l UNITED STATES PATENTl OFFICE,

JAMES THOMPSON, OF NEW YORK, N. Y.

STEREOTYPE-CASTI NG BOX.

SPECIFICATION forming part of Letters Patent No. 389,673, dated.September 18, 1888.

Application filed May 13, 1887. Serial No. 238,046.

(No model.)

To all whom it may concern:

Be it known that I, JAMES THOMPSON, a citizen of the United States, anda resident of New York, in the county and State of New York, haveinvented new and useful Improvements in Stereotype-Casting Boxes, ofwhich the following is a specification.

The object of my invention is to provide an improved means for coolingthe casting-boxes for stereotype-plates immediately after casting eachplate; and it consists in the construction and combination of partshereinafter described and specifically claimed, reference being had tothe accompanying drawings, in which#- Figure l represents a top or planview of a box for casting semicircular stereotype-plates for rotaryprinting-presses. Fig. 2 is a vertical section of the same taken on theline a; a: of Fig. l, and seen in the direction of the arrow. Fig. 3 isa plan view of the casting-box with cover applied. Fig. 4 is across-section through the line y y of Fig. 3.

The casting-box is supported by trunnions a upon a frame, A, above awater-pan, B, and is capable of being placed at an inclination, ifdesired, when casting.

C is the bottom of the box or that in which the paper matrix is placedand formed to the curvature of the box.

D is the top of the box, between which and the matrix placed on thebottom C the melted type-metal is poured in to form the stereotypeplate.The paper matrix being a good nonconductor, the bottom O of the boxremains comparatively cool, while the top D in immediate contact withthe melted metal, becomes rapidly overheated and has to be cooled off bycold water between each casting. For this purpose it is usual to pourwater in the box D by means of a dipper. This is not only tedious, butdepends upon mere chance if the cooling be uniform, and if any water isspilled over the edge of the top D, between the same and the bottom C,it will run down upon and spoil the paper matrix, thus wasting labor andtime, which latter is the most important factor in newspaper-printing.When, for removing the stereotypeplate cast, the top D, grasped by thehandle d, is raised and tilted, the water runs ont into the pan Bunderneath.

The object of my improvement is to provide for a rapid and uniformcooling of the top D of the casting-box without incurring any risk ofspoiling the matrix. For this purpose I secure to the troughshaped top Da waterpipe, E, issuing through the hinged orrear end, d', of the troughand connected by means of a dexible tube, c, to a water supply pipe, b,in the floor of the building, and provide the pipe E with a valve orstop-cock, e, for admitting or shutting off the water to and from thepipe in the trough.

The pipe E is preferably arranged longitudinally in the middle of thetrough, near the top thereof, and toits forward end I conneet by aT-joint a pipe, F,in proximity to the front end-wall of the troughconnecting the ends of the pipe F by pipes G, arranged along and inproximity to the two opposite sides of the trough. The ends of the pipesG at the end wall, d', of the trough are closed by caps h. The pipes F Gare provided nnderneath with a series of perforations, f g, pointingoutward and downward.

When a casting has been taken, the stopcock e is opened, causing jetsofcold water to stream against and down the front end, two sides, and thebottom ofthe trough until the stop-cock e is turned off and the troughor top D raised and tilted by the handles d, which causes the water inthe trough to ilow out from the inclinedl'rear \vall,d',of the troughand into the pan B below, from whence it ows ont through a waste-pipe.The tube c which connects the pipes E and b must be iiexible, asdescribed, so as to allow the top of the trough D to be tilted. By thismeans fresh and cold water is supplied to rapidly cool the box D aftereach casting. The water is uniformly applied to cool all paris of thetop D and no risk is incurred to spill water on the matrix, and thetedious operation of pouring on water with a dipper is dispensed with.

l When in tilting the box on its trunnions a to remove` the casting thewater which has lbeen used in the trough D runs out into the pan B, thesuddenness of the tilting often.

causes thewater to splash over the pan B on the iloor around it, which,ofcourse, is not desirable. To prevent this I provide the box orWater-trough D with a cover, I, which covers the water-pipes G E F andthe whole trough IOO D, with exeeption of an opening, II, at the lowerend of the trough, as shown in Fig. 3, and for the purpose of gettingaccess to the interlor ofthe trough D when desired, I make the saideoverof two partsa' i', separable from eaeh other, so that the cover eaneasily be taken apart and removed from the box when needed. These partsili consist siinplv ofthin metallic plates held in place by putting themre on top ofthe pipes G E F and inserting;` their outer edges underneaththeordinary top `flange, m, of the box or trough D, so that the inneredgesss, join by overlapping eaeh other in the middle ofthe trough, anotoh, a, bei ug eut ont of the edge of the plates, so as to elear thevalve-plug ofthe faueetc. Two screws, fr, are then inserled throughholes made through the 'two overlappingedges ofthe plates and screwedinto a threaded hole in bars o, which before 2c the plates are appliedare placed erosswise of the trough above the pipes with their endsentering underneath the aforesaid flanges m. For gaining aeeess totheinterior of the trough D 1t is only necessary to unserew the smallscrews r and remove the plates fi z" of the cover I.

Having thus described myinventionm'hat I elaiin as new, and desire tosecure bv Letters Patent, is- 'Y u 3o 1. In a box forCastingstereotypeplates,the combination of the pipe E, connected by aiexible tube, c, to the Water-supply pipe b, and provided with stopeoeke, the perforated orosspipe F, communicating with the pipe E andarranged at the end of the trough,and the perforated pipes G, connectedto the ends of the pipe F and arranged along the side Walls of thetrough D, substantially as and for the purpose set forth.

2. In abox for eastingstereotype-plates, the ,to combination, with thetrough D, of a cover, I, covering the whole top of the saine withexception of an opening, H, at the lower end, substantially asspeoilied.

3. In a box for casting-stereotypeplates, the t5 combination, with thetrough D,haviug flanges in. and Waterpipes G E F, substantially shown,of a eover, I, in two parts, ii, the said parts being held at theirouter edges underneath the flanges m and overlapping and se- 5e curedtogether in the middle ofthe trough.

4. In abox for casting stereotypeplates, the combination, with thetrough D,having Ilanges m and water pipes G E F, substantially as shown,of the erosslloars o and cover I in two parts, the said parts and thecross-bars being held at their outer edges underneath the flanges m, andthe said parts overlapping and seen red together in the middle of thetrough and fastened to the said erossbars by screws r. oo

[n testimony that I Claim the foregoing as my invention I have signed myname,in presence of two witnesses7 this 26th day of April, 1887.

JAMES THOMPSON.

Witnesses: l

T. M. Claessens, HELMER Wns'rsnN.

